Cisco IOS Quality of Service (QoS) is specifically designed to accelerate the adoption of revenue-generating services in the Service Provider environment, while reducing the operational expense associated with these services.

IP VPN QoS features provide equivalent service guarantees for transport of Frame Relay and ATM traffic in a multi-service-edge environment. Broadband aggregation QoS features work in conjunction with the Cisco Intelligent Service Gateway to provide dynamic provisioning of broadband on demand and hierarchical bandwidth shaping. Technologies such as Link Fragmentation and Interleaving and IP Header Compression enable efficient usage of link bandwidth, and protect voice traffic during transient congestion.